#include<bits/stdc++.h>
using namespace std;
int a[101111],a1[101111],a2[101111];
int g[101111];
int b[101111];
int main(){
    freopen("arena.in","r",stdin);
    freopen("arena.out","w",stdout);
    cout<<0;

    return 0;
}
/*
1
5 5 15 3
0 3 0
12 4 0
1 1 4
5 5 -2
6 4 -4
2 5 8 9 15
*/
